A subway rail well hoisting support structure

Abstract

The present invention relates to a subway track well hoisting support structure, the key points of its technical solution are that it includes longitudinal support beams arranged on both sides of the upper part of the track well and hardened ground arranged at the bottom of the track well, the length direction of the longitudinal support beam is arranged along the length direction of the track well; the lower part of the longitudinal support beam is distributed with a plurality of transverse support beams along its length direction, and the length direction of the transverse support beam is arranged along the width direction of the track well; one end of the transverse support beam is located above the track well, and the other end of the transverse support beam extends to above the track well foundation; an in-well support device is arranged between the transverse support beam and the hardened ground, and an out-of-well support device is arranged between the transverse support beam and the foundation; the present invention can well support the gantry crane when carrying out construction in areas with soft geology and prone to collapse.

Description

Technical Field

[0001] The present invention relates to the technical field of subway construction, and in particular to a subway track well hoisting support structure. Background Art

[0002] During the construction of urban subway transportation, in order to meet the needs of track laying, it is usually necessary to reserve a hole for the track hoisting shaft on the station structure plate. This hole used for track construction is usually called a track shaft. The function of the track shaft is to lift the finished track from the assembly area to the track laying vehicle and transport it to the track laying working surface. Its position and size should meet the requirements for safe and efficient lifting of the track. In order to meet the transportation requirements for materials such as rails, a gantry crane needs to be installed at the location of the track shaft. When the gantry crane is installed, it is necessary to lay a track on the ground for the gantry crane to move. In order to ensure that the gantry crane can move well, when laying the track for the gantry crane, the foundation surface on both sides of the track shaft opening is usually leveled and hardened, so that a hardened ground structure is formed on both sides of the upper part of the track shaft, and then the track for fixing the gantry crane is laid on the hardened ground.

[0003] Hoisting construction at rail shafts typically requires the use of large gantry cranes weighing over 10 tons. These cranes are heavy, placing significant stress on the foundation. When constructing rail shafts in soft, subsidence-prone areas, the crane's force is transmitted to the foundation through the hardened ground. Because the rail shaft is hollow, and the center of the gantry crane and the weight it carries falls directly on the rail shaft, the foundation surrounding the shaft is susceptible to subsidence and collapse under cyclical loads, impacting project safety and progress. Summary of the Invention

[0004] The purpose of the present invention is to provide a subway rail shaft hoisting support structure that can well support a gantry crane when construction is carried out in areas with soft geology and prone to collapse.

[0005] The above technical objectives of the present invention are achieved through the following technical solutions: a subway track well hoisting support structure, comprising longitudinal support beams arranged on both sides of the upper part of the track well and a hardened ground arranged at the bottom of the track well, the length direction of the longitudinal support beam being arranged along the length direction of the track well; a plurality of transverse support beams are distributed along the length direction of the lower part of the longitudinal support beam, and the length direction of the transverse support beam is arranged along the width direction of the track well; one end of the transverse support beam is located above the track well, and the other end of the transverse support beam extends to above the foundation of the track well; an in-well support device is arranged between the transverse support beam and the hardened ground, and an out-of-well support device is arranged between the transverse support beam and the foundation.

[0006] Through the above technical solution, the track for installing the gantry crane is installed on the upper part of the longitudinal support beam, and the longitudinal support beam is supported by arranging a transverse support beam along the width direction of the track well at the bottom of the longitudinal support beam, and the load is transferred through the support device inside the well and the support device outside the well, and then the load borne by the longitudinal support beam is distributed to the track well area and the foundations on both sides of the track well, thereby effectively reducing the load on the foundation of the track well area and reducing the stress concentration of the foundation, so that the foundation around the track well is not prone to structural subsidence.

[0007] Preferably, the out-of-well support device is located below the transverse support beam and includes a horizontally arranged top support plate and a plurality of cast-in-place concrete piles fixed to the lower part of the top support plate; the cast-in-place concrete piles extend below the hardened ground; and a plurality of support piles for supporting the transverse support beam are arranged between the top support plate and the transverse support beam.

[0008] Through the above technical solution, the off-well support device uses the top support plate as the support platform and is supported by concrete bored piles. The force borne by the concrete bored piles is transmitted to the bottom of the hardened ground, thereby having little impact on the foundation around the rail well, making the foundation around the rail well less likely to collapse under stress.

[0009] Preferably, the in-well support device includes a concrete protective body respectively arranged on both sides of the upper part of the hardened ground and a number of upper support columns distributed along the length direction of the concrete protective body; the upper support columns correspond one-to-one to the transverse support beams, the upper ends of the upper support columns are fixedly connected to the transverse support beams, and the lower ends of the upper support columns are fixedly connected to the top of the concrete protective body.

[0010] Through the above technical solution, the in-well support device adopts the concrete protective body as the bottom support foundation, so that the in-well support device has good stability. Upper support columns are set on the upper part of the concrete protective body for fixed-point support, which is not only convenient for construction, but also convenient for adjusting the support height.

[0011] Preferably, cantilever platforms are provided below both ends of the longitudinal support beam, and the cantilever platforms extend to the inside of the side walls of the rail shaft; end columns for supporting the longitudinal support beam are fixed to the upper part of the cantilever platforms.

[0012] Through the above technical solution, the middle part of the longitudinal support beam is supported by multiple upper support columns, thereby transferring the load to the concrete protection body. By setting cantilever platforms connected to the track well at both ends of the longitudinal support beam, and then cooperating with the middle support of the longitudinal support beam, the longitudinal support beam is made more stable during use.

[0013] Preferably, a lateral protective wall along the length direction of the rail well is fixed on one side of the upper portion of the top support plate away from the center of the rail well, and the end of the transverse support beam is fixedly connected to the lateral protective wall.

[0014] Through the above technical solution, by setting up lateral protective walls on the upper part of the top support, the track well area is enclosed by the lateral protective walls, and by fixing the ends of the transverse support beams on the lateral protective walls, the transverse support beams have better stability.

[0015] Preferably, a plurality of upper transverse tie rods are circumferentially arranged at the upper end of the upper support column; one end of the upper transverse tie rod is fixedly connected to the upper support column, and the other end is fixedly connected to the top support plate; a plurality of lower transverse tie rods are circumferentially arranged at the lower end of the upper support column; one end of the lower transverse tie rod is fixedly connected to the upper support column, and the other end of the lower transverse tie rod is fixedly connected to the side wall of the rail well.

[0016] Through the above technical solution, the length of the upper support column is longer and it is easy to bend due to radial force, thereby affecting the supporting effect of the top support plate; by respectively arranging upper transverse pull rods and lower transverse pull rods at the upper and lower ends of the upper support column, the upper support column is laterally supported, and then when the upper support column is subjected to circumferential force, the upper transverse pull rods and lower transverse pull rods are used to balance other circumferential external forces of the upper support column, so that the upper support column maintains a good stable state.

[0017] Preferably, the concrete protection body includes a lower supporting part, an upper protecting part and a connecting part between the upper protecting part and the lower supporting part; a plurality of lower supporting columns distributed along the length direction of the track well are provided at the lower part of the upper protecting part; the upper and lower ends of the lower supporting columns are fixedly connected to the upper protecting part and the hardened ground respectively.

[0018] Through the above technical solution, the concrete protective body includes a lower supporting part, an upper protective part and a connecting part located between the upper protective part and the lower supporting part, thereby being able to provide lateral protection to the area between the two concrete protective bodies; and the upper protective part is a cantilever structure, and the upper support plate needs to withstand the force exerted by the upper supporting column; by arranging a lower supporting column at the bottom of the upper protective part to support the upper supporting column, the transition position between the upper protective part and the connecting part is not prone to stress fracture.

[0019] Preferably, a plurality of support frames matching the cross-sectional shape of the concrete protection body are embedded inside the concrete protection body; a plurality of skeleton steel bars arranged along the length direction of the concrete protection body are arranged between adjacent support frames, and both ends of the skeleton steel bars are fixedly connected to the support frames respectively.

[0020] Through the above technical solution, by embedding a supporting skeleton that matches its cross-sectional shape inside the concrete protective body, and connecting multiple supporting skeletons through skeleton steel bars, the supporting skeleton and the skeleton steel bars form a supporting body inside the concrete protective body, thereby effectively improving the load strength at the connection position between the connection part and the lower supporting part and the upper protective part, so that the upper protective part can well support the upper supporting column and is not prone to breakage.

[0021] Preferably, a longitudinal connecting frame is provided between the upper supporting columns; both ends of the longitudinal connecting frame are respectively fixedly connected to the adjacent upper supporting columns.

[0022] According to the above technical solution, a longitudinal connecting frame is provided between the upper supporting columns, and the plurality of upper supporting columns are connected into a whole through the longitudinal connecting frame, so that each upper supporting column has better stability when in use.

[0023] Preferably, the supporting pile includes a rigid bearing pile and a spring shock absorber; the rigid bearing pile includes a pile body and a concrete base block filled inside the pile body; the spring shock absorber includes an upper mounting plate, a lower mounting plate and a shock absorbing spring arranged between the upper mounting plate and the lower mounting plate.

[0024] Through the above technical solution, the top support plate is supported by two types of support piles: rigid bearing piles and spring shock absorbers. Among them, the rigid bearing piles are filled with concrete base blocks and have good structural stability and good supporting strength; the spring shock absorbers can effectively reduce the impact of the vibration transmitted from the upper part of the top support plate on the lower support structure, thereby being able to stably and well support the structure installed on the upper part of the top support plate.

[0025] In summary, the present invention has the following advantages:

[0026] 1. By setting up top support plates on both sides of the upper part of the track well as an installation platform, and then setting up transverse support beams and longitudinal support beams on the top support plates as the installation foundation of the gantry crane track; the top support plate is jointly supported by the concrete bored piles and upper support columns below it, wherein the concrete bored piles pass through the foundation and extend below the hardened ground, so when bearing load, the impact on the surrounding foundation soil is small; by providing the concrete protection body with three parts: a lower support part, an upper protection part, and a connecting part; the lower end of the upper support column is fixed on the upper protection part, which not only shortens the support length, but also relies on the concrete protection body to transfer the bearing force to the hardened ground area below, so it can stably support the upper lifting structure and is not prone to structural subsidence.

[0027] 2. The middle area of ​​the longitudinal support beam is supported by the transverse support beam, and the transverse support beam is supported by the rigid bearing piles and spring shock absorbers at the bottom; cantilever platforms connected to the side walls of the track well are set at both ends of the longitudinal support beam, and end support columns are set on the cantilever platforms to support the longitudinal support beam, thereby being able to stably support the longitudinal support beam.

[0028] 3. By embedding a support frame that matches its cross-sectional shape inside the concrete protective body, and connecting multiple support frames through frame steel bars, the support frame and the frame steel bars form a support body inside the concrete protective body, thereby effectively improving the load strength at the connection position between the connection part and the lower support part and the upper protection part, and circumferentially arranging upper transverse tie rods and lower transverse tie rods for the upper support columns with longer lengths, and connecting each upper support column through a longitudinal connecting frame, so that the entire support system has good integrity and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the present invention and, together with the description, serve to explain the principles of the present invention.

[0030] Figure 1 It is a horizontal structural diagram of the subway track shaft hoisting support structure.

[0031] Figure 2 It is a schematic diagram of the longitudinal structure of the subway track shaft hoisting support structure.

[0032] Figure 3 yes Figure 1 A partial enlarged view of middle A.

[0033] Figure 4 It is a structural diagram that reflects the connection between the lateral protective wall and the top support plate.

[0034] Figure 5 It is a structural diagram of a rigid bearing pile.

[0035] Figure 6 It is a structural diagram of a spring shock absorber.

[0036] Figure 7 It is a structural diagram that reflects the internal structure of the concrete protection body.

[0037] Among them, 1. Hardened ground; 2. Concrete protection body; 21. Lower support part; 22. Upper protection part; 23. Connection part; 24. Support frame; 25. Skeleton steel bar; 3. Concrete bored pile; 4. Top support plate; 5. Horizontal support beam; 6. Longitudinal support beam; 61. Diagonal brace; 7. Lateral protective wall; 71. Mounting hole; 72. Positioning column; 8. Support pile; 81. Rigid bearing pile; 811. Pile body; 812. Concrete base block; 82. Spring shock absorber; 821. Upper mounting plate; 822. Lower mounting plate; 823. Shock-absorbing spring; 824. Guide column; 9. Upper support column; 91. Upper horizontal tie rod; 92. Lower horizontal tie rod; 93. Longitudinal connecting frame; 10. Lower support column; 11. Cantilever platform; 12. End column; 100. Gantry crane; 200. Track. DETAILED DESCRIPTION

[0038] The present invention will be described in further detail below with reference to the accompanying drawings. Like components are denoted by like reference numerals. It should be noted that the terms "front," "rear," "left," "right," "upper," and "lower" used in the following description refer to directions in the accompanying drawings, and the terms "bottom," "top," "inner," and "outer" refer to directions toward or away from the geometric center of a particular component, respectively.

[0039] Example:

[0040] A subway rail well hoisting support structure, referring to Figure 1 and Figure 2 , including longitudinal support beams 6 arranged on both sides of the upper part of the track well and a hardened ground 1 arranged at the bottom of the track well, and the longitudinal support beam 6 is arranged along the length direction of the track well. A plurality of transverse support beams 5 are distributed along the length direction of the longitudinal support beam 6 at the bottom, and the length direction of the transverse support beam 5 is arranged along the width direction of the track well; one end of the transverse support beam 5 is located above the track well, and the other end of the transverse support beam 5 extends to above the foundation of the track well. An in-well support device is provided between the transverse support beam 5 and the hardened ground 1, and an out-of-well support device is provided between the transverse support beam 5 and the foundation. The track 200 of the gantry crane 100 is laid and fixed on the upper part of the longitudinal support beam 6.

[0041] The out-of-hole support system includes a horizontally positioned top support plate 4 below the transverse support beam 5 and several cast-in-place concrete piles 3 secured to the bottom of the top support plate 4. The cast-in-place concrete piles 3 extend below the hardened ground surface 1. Several support piles 8 are positioned between the top support plate 4 and the transverse support beam 5 to support the transverse support beam 5. The support piles 8 include rigid bearing piles 81 for rigid support and spring dampers 82 for elastic support. The upper and lower ends of the support piles 8 are fixedly connected to the transverse support beam 5 and the top support plate 4, respectively.

[0042] The in-well support device includes a concrete protective body 2 respectively arranged on both sides of the upper part of the hardened ground 1 and a number of upper support columns 9 distributed along the length direction of the concrete protective body 2; the upper support columns 9 correspond one-to-one to the transverse support beams 5, the upper ends of the upper support columns 9 are fixedly connected to the transverse support beams 5, and the lower ends of the upper support columns 9 are fixedly connected to the top of the concrete protective body 2. The out-well support device uses the top support plate 4 as a support platform and is supported by concrete bored piles 3. The force supported by the concrete bored piles 3 is transmitted to the bottom of the hardened ground 1, thereby having little impact on the foundation around the railroad well, making it less likely for the foundation around the railroad well to collapse under stress. The in-well support device uses the concrete protective body 2 as the bottom support base, thereby making the in-well support device have good stability. The upper support columns 9 are provided on the upper part of the concrete protective body 2 for fixed-point support, which is not only convenient for construction but also convenient for adjusting the support height.

[0043] When laying the track 200 for the gantry crane 100, pile holes are first drilled on both sides of the track well, and then concrete piles 3 are constructed. With the concrete piles 3 as the supporting foundation, top support plates 4 are erected on both sides of the upper part of the track well, which serve as the basic platform for laying the track 200. Upper support columns 9 are also provided between the top support plate 44 and the concrete protective body 2 to support the top support plate 4 at one end near the center of the track well, thereby providing better stability for the top support plate 4. The concrete piles 3 extend through the foundation to below the hardened ground 1, so when bearing loads, they have little impact on the surrounding foundation soil.

[0044] Cantilever platforms 11 are located below each end of the longitudinal support beam 6, extending into the sidewalls of the rail shaft. Fixed above these cantilever platforms are end posts 12, which support the longitudinal support beam 6. These are also rigid supports, identical in structure to the rigid support piles 81, differing only in their specific dimensions. By providing cantilever platforms 11 at both ends of the longitudinal support beam 6, connected to the rail shaft and supporting the central portion of the longitudinal support beam 6, the longitudinal support beam 6 is made more stable during use.

[0045] The concrete protection body 2 includes a lower support portion 21, an upper protection portion 22, and a connecting portion 23 located between the upper protection portion 22 and the lower support portion 21. A plurality of lower support columns 10 distributed along the length of the rail well are provided at the lower portion of the upper protection portion 22; the upper and lower ends of the lower support columns 10 are fixedly connected to the upper protection portion 22 and the hardened ground 1 respectively. The concrete protection body 2 is provided with an upper protection portion 22 extending toward the center of the rail well, thereby being able to effectively protect the area below the upper protection portion 22, preventing collapse or falling objects from rolling down to the lower part of the rail well, thereby effectively improving construction safety. By providing the lower support columns 10 at the lower portion of the upper protection portion 22 to support the upper protection portion 22, the transition position where the upper protection portion 22 is connected to the connecting portion 23 is less likely to be fractured due to stress.

[0046] Reference Figures 1 to 3 , a number of upper transverse tie rods 91 are circumferentially arranged on the upper end of the upper support column 9; one end of the upper transverse tie rod 91 is fixedly connected to the upper support column 9, and the other end is fixedly connected to the top support plate 4. A number of lower transverse tie rods 92 are circumferentially arranged on the lower end of the upper support column 9; one end of the lower transverse tie rod 92 is fixedly connected to the upper support column 9, and the other end of the lower transverse tie rod 92 is fixedly connected to the side wall of the rail well. A longitudinal connecting frame 93 is arranged between the upper support columns 9; the two ends of the longitudinal connecting frame 93 are respectively fixedly connected to the adjacent upper support columns 9. By arranging the longitudinal connecting frame 93 between the upper support columns 9, and then connecting the multiple upper support columns 9 into a whole through the longitudinal connecting frame 93, each upper support column 9 has better stability when in use. The upper support column 9 is relatively long and is easily bent by radial forces, thereby affecting the supporting effect on the top support plate 4; the upper support column 9 is laterally supported by arranging upper transverse pull rods 91 and lower transverse pull rods 92 at the upper and lower ends of the upper support column 9 respectively, and then when the upper support column 9 is subjected to circumferential forces, the upper transverse pull rods 91 and lower transverse pull rods 92 balance other circumferential external forces of the upper support column 9, thereby keeping the upper support column 9 in a good and stable state.

[0047] Reference Figures 1 to 3A lateral protective wall 7 is fixed along the length of the track well on the side of the upper part of the top support plate 4 away from the center of the track well, and the ends of the transverse support beams 5 are anchored on the side walls of the lateral protective wall 7. The lateral protective wall 7 is made of prefabricated concrete panels, and L-shaped brackets are fixed on both sides of its lower part. The lateral protective wall 7 is fixed by anchoring the L-shaped brackets on the supporting top plate. When the lateral protective wall 77 is constructed in the track well area, the track well area is protected during construction and safety is provided during construction. After the construction of the track well area is completed, the track well is dismantled together with the transverse support beams 5, longitudinal support beams 6 and other structures. By fixing the ends of the transverse support beams 5 on the lateral protective walls 7, the transverse support beams 55 have better stability.

[0048] Reference Figures 1 to 3 The longitudinal support beam 6 comprises several sections of Bailey beams, with adjacent Bailey beams connected by bolts. The longitudinal support beam 6 is constructed by splicing multiple sections of Bailey beams together, making it easy and quick to install and install the longitudinal support beam 6, and allowing the length of the beam to be adjusted according to construction requirements. Several diagonal braces 61 are provided on the side of the longitudinal support beam 6 away from the track well. The upper ends of the diagonal braces 61 are connected to the longitudinal support beam 6, and the lower ends of the diagonal braces 61 are connected to the top support plate 4. The longitudinal support beam 6 is relatively long, and when securing it to the top support plate 4, anchor points are typically set at regular intervals. Under prolonged vibration loads and other external forces, the individual anchor points of the longitudinal support beam 6 are prone to loosening, causing the longitudinal support beam 6 to deflect. By providing the diagonal braces 61 between the longitudinal support beam 6 and the top support plate 4 to diagonally tension the longitudinal support beam 6, the impact loads on each anchor point during daily use can be effectively reduced, thereby effectively reducing the possibility of deflection of the longitudinal support beam 6.

[0049] Reference Figure 4 The lateral protective wall 7 is provided with a plurality of mounting holes 71 extending vertically through the lateral protective wall 7 along its length. A plurality of positioning posts 72 for engaging with the mounting holes 71 are provided on the upper portion of the top support plate 4 along its length. When installing and positioning the precast concrete panels of the lateral protective wall 7, the mounting holes 71 engage with the positioning posts 72, allowing for quick and easy installation and positioning of the lateral protective wall 7. Furthermore, the engagement of the positioning posts 72 with the mounting holes 71 effectively improves the lateral protective wall 7's anti-tilting capability.

[0050] Reference Figure 5 and Figure 6The rigid bearing pile 81 includes a pile body 811 and a concrete base block 812 filled inside the pile body 811. The spring shock absorber 82 includes an upper mounting plate 821, a lower mounting plate 822, and a shock absorbing spring 823 arranged between the upper mounting plate 821 and the lower mounting plate 822. The shock absorbing spring 823 is provided with a guide column 824, and the lower end of the guide column 824 is fixedly connected to the lower mounting plate 822. However, when the gantry crane 100 is moving on the track 200 or when the upper structure of the top support plate 4 is impacted by external force, these structures will generate vibration shocks that are transmitted downward. The rigid bearing pile 81 is filled with a concrete base block 812 and has good structural stability and good supporting strength; the spring shock absorber 82 can effectively reduce the impact of the vibration transmitted from the upper part of the top support plate 4 on the lower support structure, thereby being able to stably and well support the structure installed on the upper part of the top support plate 4.

[0051] Reference Figure 7 , a number of support frames 24 that match the cross-sectional shape of the concrete protective body 2 are embedded inside the concrete protective body 2; the support frames 24 are welded from structural steel. A plurality of skeleton steel bars 25 arranged along the length direction of the concrete protective body 2 are provided between adjacent support frames 24, and the two ends of the skeleton steel bars 25 are fixedly connected to the support frames 24 respectively. By embedding the support frames 24 that match the cross-sectional shape of the concrete protective body 2 inside the concrete protective body 2, and connecting the plurality of support frames 24 through the skeleton steel bars 25, the support frames 24 and the skeleton steel bars 25 form a support body inside the concrete protective body 2, thereby effectively improving the load strength at the connection position between the connection part 23 and the lower support part 21 and the upper protective part 22, and thereby enabling the upper protective part 22 to well support the upper support column 9 and not easily break.

[0052] Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A subway rail well hoisting support structure, characterized by: The invention comprises longitudinal support beams (6) arranged on both sides of the upper part of a rail well and a hardened ground (1) arranged at the bottom of the rail well, wherein the longitudinal support beams (6) are arranged along the longitudinal direction of the rail well; a plurality of transverse support beams (5) are distributed along the longitudinal direction of the longitudinal support beams (6), wherein the transverse support beams (5) are arranged along the width direction of the rail well; one end of the transverse support beam (5) is located above the rail well, and the other end of the transverse support beam (5) extends above the rail well foundation; an in-well support device is arranged between the transverse support beam (5) and the hardened ground (1), and an out-well support device is arranged between the transverse support beam (5) and the foundation; and the invention also comprises a track (200) and a gantry crane (100), wherein the track (200) of the gantry crane (100) is laid and fixed on the upper part of the longitudinal support beam (6).

2. The subway rail shaft hoisting support structure according to claim 1, characterized in that: The out-of-hole support device comprises a top support plate (4) located below a transverse support beam (5) and arranged horizontally, and a plurality of cast-in-place concrete piles (3) fixed to the lower portion of the top support plate (4); the cast-in-place concrete piles (3) extend below the hardened ground (1); and a plurality of support piles (8) for supporting the transverse support beam (5) are arranged between the top support plate (4) and the transverse support beam (5).

3. The subway rail shaft hoisting support structure according to claim 2, characterized in that: The in-well support device comprises a concrete protective body (2) respectively arranged on both sides of the upper part of the hardened ground (1) and a plurality of upper support columns (9) distributed along the length direction of the concrete protective body (2); the upper support columns (9) correspond to the transverse support beams (5) one by one, the upper ends of the upper support columns (9) are fixedly connected to the transverse support beams (5), and the lower ends of the upper support columns (9) are fixedly connected to the top of the concrete protective body (2).

4. The subway rail shaft hoisting support structure according to claim 1, characterized in that: Cantilever platforms (11) are respectively provided below both ends of the longitudinal support beam (6), and the cantilever platforms (11) extend to the inside of the side wall of the rail well; end columns (12) for supporting the longitudinal support beam (6) are fixed on the upper part of the cantilever platforms (11).

5. The subway rail shaft hoisting support structure according to claim 2, characterized in that: A lateral protective wall (7) along the length direction of the rail well is fixed on one side of the upper portion of the top support plate (4) away from the center of the rail well, and the end of the transverse support beam (5) is fixedly connected to the lateral protective wall (7).

6. The subway rail shaft hoisting support structure according to claim 3, characterized in that: A plurality of upper transverse tie rods (91) are circumferentially arranged at the upper end of the upper support column (9); one end of the upper transverse tie rod (91) is fixedly connected to the upper support column (9), and the other end is fixedly connected to the top support plate (4); a plurality of lower transverse tie rods (92) are circumferentially arranged at the lower end of the upper support column (9); one end of the lower transverse tie rod (92) is fixedly connected to the upper support column (9), and the other end of the lower transverse tie rod (92) is fixedly connected to the side wall of the rail well.

7. The subway rail shaft hoisting support structure according to claim 3, characterized in that: The concrete protection body (2) comprises a lower supporting portion (21), an upper protection portion (22), and a connecting portion (23) located between the upper protection portion (22) and the lower supporting portion (21); a plurality of lower supporting columns (10) distributed along the length direction of the rail well are provided at the lower portion of the upper protection portion (22); and the upper and lower ends of the lower supporting columns (10) are fixedly connected to the upper protection portion (22) and the hardened ground (1), respectively.

8. The subway rail shaft hoisting support structure according to claim 3, characterized in that: A plurality of support frames (24) matching the cross-sectional shape of the concrete protection body (2) are embedded inside the concrete protection body (2); a plurality of skeleton steel bars (25) arranged along the length direction of the concrete protection body (2) are arranged between adjacent support frames (24), and both ends of the skeleton steel bars (25) are fixedly connected to the support frames (24).

9. The subway rail shaft hoisting support structure according to claim 3, characterized in that: A longitudinal connecting frame (93) is provided between the upper supporting columns (9); both ends of the longitudinal connecting frame (93) are fixedly connected to the adjacent upper supporting columns (9).

10. The subway rail shaft hoisting support structure according to claim 2, characterized in that: The supporting pile (8) comprises a rigid bearing pile (81) and a spring damper (82); the rigid bearing pile (81) comprises a pile body (811) and a concrete base block (812) filled inside the pile body (811); the spring damper (82) comprises an upper mounting plate (821), a lower mounting plate (822), and a damping spring (823) arranged between the upper mounting plate (821) and the lower mounting plate (822).

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